package com.hxzy.tms.interceptor;

import org.apache.struts2.ServletActionContext;

import com.hxzy.tms.SessionHolder;
import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;

public class AuthorizationInterceptor extends AbstractInterceptor{
	   private static final long serialVersionUID = -6391719486772661560L;

	    @Override
	    public String intercept(ActionInvocation invocation) throws Exception {
	        if (SessionHolder.get() == null) {
	            if ("XMLHttpRequest".equals(ServletActionContext.getRequest().getHeader("x-requested-with"))) {
	                ServletActionContext.getResponse().getWriter()
	                        .println("{\"status\":-1, \"message\":\"access denied.\"}");
	                return null;
	            }
	            return Action.LOGIN;
	        }
	        return invocation.invoke();
	    }


}
